This 35 year old wants me to go watch a movie with him? Is it a date?

I'm almost 20....but I've realized I have a good connection with a 35 year old man. He's really a health nut and works out alot so he has the body of a 25 year old. He's a good Christian man and I know he would treat me well. But I just can't get the age difference out of my head. And I can't quit thinking about him. He wants to go watch a movie together tomorrow....our first hangout one on one....we've had talks before one on one in person but never legitly hanging out. Would this be considered a date? He already calls me little knick names...once even cinnamon toast crunch? and reese's cup? I can't tell if this is creepy...but it's definitely flattering and I do like him. So, should I go see him? And is it a date? Should I offer to pay for my movie ticket or what?