Trailer and poster for "Alex Cross"

I've seen "Kiss The Girls" and "Along Came A Spider" many times, an when I heard Idris Elba was set to be playing Alex Cross the character made famous by the great Morgan Freeman. I was extremely excited, then I found out he had been replaced by Tyler Perry, Tyler freaking Perry I mean who on earth even is this man? I thought he wrote musicals or something, so after hearing that I gave up on the proposed project. Now we have a poster and a trailer for the film, an I'm going to be honest I am kind of looking forward to it.