Topher Grace dubious about That '70s Show film reunion

Topher Grace doubts there will ever be a film version of his hit sitcom That '70S Show, because most of the cast are now movie stars.

Grace played geeky Eric Forman in the Fox series, which was based on the lives of a group of teens in the '70s and ran for eight years.

The actor reveals he is baffled by fans' constant calls for a big screen version of the show, because its popularity had waned when it went off air.

And the Spider-Man 3 star is convinced his co-stars Ashton Kutcher and Mila Kunis don't need the work.

He tells Entertainment Tonight, "I get that question more than any other, and it was never a show that I felt like when it went off the air that people were really that interested in.

"Ashton is doing so great. Mila was just nominated for a Golden Globe, so I love all those kids. I still see them all."