Keanu Reeves thinks 3D technology can ruin movies.

3D is more prevalent than ever in filmmaking but the 'Matrix' star believes there are some occasions when it doesn't add to the movie-going experience but instead hinders it, pointing to 'Clash of the Titans' as a recent Example.

He told Empire magazine: ''We have seen some examples where the 3D aspect of the film was not the way it was designed. They've done post-3D. 'Clash of the Titans' is often held up as the way not to do it. It was rushed. I'm sure the filmmakers were frustrated by it.''

Keanu is set to reprise his role as Ted Logan in the third 'Bill and Ted' movie, the follow up to 1989's 'Bill and Ted's Excellent Adventures' and its sequel 'Bill and Ted's Bogus Journey' and recently revealed The Script is promising and he is excited about a new instalment with original co-star Alex Winter.

He said: ''We have a script, we're trying to put it together right now. It's a good script too.''