Star Will Smith took everyone by surprise by sharing that he turned down the lead role of filmmaker Christopher Nolan‘s “Inception” because he didn’t “understand the plot”.

Smith shared the anecdote during a recent interview with radio station Kiss Xtra (via HuffPost). Hollywood star Leonardo DiCaprio ended up headlining the cerebral action thriller instead, reports variety.com.

“I don’t think I’ve ever said it publicly but I am going to say it because we are opening up to one another,” Smith said.