The 58-year-old actor said his memories of boyhood made him sign up for new movie 'GI Joe: Retaliation', reported Daily Express.
"When I was a kid I used to play with a GI Joe action figure so to do this movie is a big honour for me. I always dreamt of being Joe growing up so to at least share a moment in a movie with him was a lot of fun. I felt like a big kid," Willis said.
'GI Joe: Retaliation' is a sequel to 2009's 'GI Joe: The Rise of Cobra'. The film also stars Dwayne Johnson, Channing Tatum, Arnold Vosloo, Ray Park, Jonathan Pryce and Lee Byung-hun.