T-Rex: Back to the Cretaceous is a 1998 American edutainment adventure film shot for the IMAX 3D format. The film is directed by Brett Leonard, renowned for his computer-generated imagery special effects productions. Executive producer/co-writer Andrew Gellis and producers Antoine Compin and Charis Horton also make up the production team. Liz Stauber and Peter Horton star, alongside Kari Coleman, Tuck Milligan, and Laurie Murdoch. The film is among the few IMAX films that are considered "pure entertainment", though it still is considered rather educational by the mainstream audience.