Most Helpful Girls
It depends how much talking you guys do - if you guys don't care too much about talking and just want to enjoy yourselves, a movie might be a good option for you. If you want to learn more about the person and have the person learn more about you, you might consider doing something that is more personal and direct like sitting at a restaurant and having a conversation. If you are worried about the cost - you could pick a reasonably priced restaurant like pizza hut or olive garden - pizza hut should have decent prices since they don't serve alcohol there.
Most Helpful Guys
In general, it's a lousy choice for an early date UNLESS you have known the person for a while and know them pretty well already. Otherwise, you need to choose an activity that allows for lots of conversation - because that is what early dates are for: interviewing each other.
It is a good first date for those who feel uncomfortable with dating, who question whether they will run out of things to talk about, etc. You talk for a few minutes, then the movie starts and you are required to be silent for 1½-2 hours, then you can talk about the movie.
I would never choose a movie as a first date because I am confident of my ability to maintain a conversation.