We took a taxi from AS Movies to Universal and it was about that amount. You can go down to the front desk the night before and ask them to reserve a taxi for you. We requested a van since there were 6 of us. It was great. Taxi was on time and we were organized and left on time since we didn't want to keep the driver waiting.
For the return trip, you just have to exit Universal and they have taxi's waiting right there - cars and vans. There is someone there you keeps everyone going in the right direction.....
I think the return trip cost us about $80.00 tip included. We were there in March 2010.