(1 of ) This image released by Marvel shows Chris Evans, left, and Scarlett Johansson in a scene from "Captain America: The Winter Soldier." (AP Photo/Marvel-Disney)
(2 of ) Actress Scarlett Johansson, center, waves as she arrives at a publicity event ahead of the April release of the movie "Captain America: The Winter Soldier" next to Samuel L. Jackson, left, and Chris Evans in Beijing, China, Monday, March 24, 2014. (AP Photo/Ng Han Guan)
(3 of ) In this Monday, March 24, 2014 photo, a fan holds up posters during a publicity event ahead of the April release of the movie "Captain America: The Winter Soldier" in Beijing. Captain America and Spiderman are seeking to dominate the Chinese box office in the coming weeks, proving that U.S. patriotic superheroes can overcome Chinas leeriness of foreign films if they promise big money. Chinese authorities, wary of outside cultural influences and competition, restrict the number of foreign movies shown in the mainlands cinemas to 34 each year. (AP Photo/Ng Han Guan)
(4 of ) Actress Scarlett Johansson stands next to Samuel L. Jackson, left and Chris Evans at right during a publicity event ahead of the April release of the movie "Captain America: The Winter Soldier" in Beijing, China, Monday, March 24, 2014. (AP Photo/Ng Han Guan)
(5 of ) Actor Frank Grillo attends a special screening of Marvel's "Captain America: The Winter Soldier" hosted by The Cinema Society and Gucci Guilty at the Tribeca Grand Hotel on Monday, March 31, 2014, in New York. (Photo by Evan Agostini/Invision/AP)
(6 of ) Actress Cobie Smulders attends a special screening of Marvel's "Captain America: The Winter Soldier" hosted by The Cinema Society and Gucci Guilty at the Tribeca Grand Hotel on Monday, March 31, 2014 in New York. (Photo by Evan Agostini/Invision/AP)
(7 of ) Actors Sebastian Stan, left, and Chris Evans attend a special screening of Marvel's "Captain America: The Winter Soldier" hosted by The Cinema Society and Gucci Guilty at the Tribeca Grand Hotel on Monday, March 31, 2014, in New York. (Photo by Evan Agostini/Invision/AP)
(8 of ) Actors Chris Evans, left, and Frank Grillo attend a special screening of Marvel's "Captain America: The Winter Soldier" hosted by The Cinema Society and Gucci Guilty at the Tribeca Grand Hotel on Monday, March 31, 2014, in New York. (Photo by Evan Agostini/Invision/AP)
(9 of ) This image released by Marvel shows Sebastian Stan in a scene from "Captain America: The Winter Soldier." (AP Photo/Marvel-Disney)
(10 of ) This image released by Marvel shows Scarlett Johansson in a scene from "Captain America: The Winter Soldier." (AP Photo/Marvel-Disney)
(11 of ) This image released by Marvel shows Sebastian Stan in a scene from "Captain America: The Winter Soldier." (AP Photo/Marvel-Disney)
(12 of ) This image released by Marvel shows Robert Redford, left, and Samuel L. Jackson in a scene from "Captain America: The Winter Soldier." (AP Photo/Marvel-Disney)
(13 of ) This image released by Marvel shows Sebastian Stan in a scene from "Captain America: The Winter Soldier." (AP Photo/Marvel-Disney)
(14 of ) This image released by Marvel shows Scarlett Johansson in a scene from "Captain America: The Winter Soldier." (AP Photo/Marvel-Disney)
(15 of ) This image released by Marvel shows Samuel L. Jackson in a scene from "Captain America: The Winter Soldier." (AP Photo/Marvel-Disney)
(16 of ) This image released by Marvel shows Robert Redford in a scene from "Captain America: The Winter Soldier." (AP Photo/Marvel-Disney)
(17 of ) This image released by Marvel shows Emily VanCamp in a scene from "Captain America: The Winter Soldier." (AP Photo/Marvel-Disney)
(18 of ) This image released by Marvel shows Cobie Smulders in a scene from "Captain America: The Winter Soldier." (AP Photo/Marvel-Disney)
(19 of ) This image released by Marvel shows Chris Evans, left, and Scarlett Johansson in a scene from "Captain America: The Winter Soldier." (AP Photo/Marvel-Disney)
(20 of ) This image released by Marvel shows George St-Pierre, left, and Chris Evans in a scene from "Captain America: The Winter Soldier." (AP Photo/Marvel-Disney, Zade Rosenthal)
(21 of ) This image released by Marvel shows Chris Evans in a scene from "Captain America: The Winter Soldier." (AP Photo/Marvel-Disney, Zade Rosenthal)
(22 of ) This image released by Marvel shows Scarlett Johansson in a scene from "Captain America: The Winter Soldier." (AP Photo/Marvel-Disney, Zade Rosenthal)
(23 of ) This image released by Marvel shows Robert Redford, left, and Chris Evans in a scene from "Captain America: The Winter Soldier." (AP Photo/Marvel-Disney)
(24 of ) This image released by Marvel/Disney shows Anthony Mackie in a scene from the film, "Captain America: The Winter Soldier." The movie releases in theaters on Friday, April 4, 2014. (AP Photo/Marvel-Disney)
(25 of ) This image released by Marvel shows Anthony Mackie in a scene from the film, "Captain America: The Winter Soldier." The movie releases in theaters on Friday, April 4, 2014. (AP Photo/Marvel-Disney)