MovieTickets.com
Content: 
Usability: 
mobile.movietickets.com/ (xhtml-mp)
Fandango Mobile (review) has some competition! Both sites work similarly, you first set up an account and give the service your credit card information (Fandango lets you do this right on the mobile site but MovieTickets makes you go to their website). One you want to buy a movie ticket using your phone it only takes a few clicks because your credit card is on file. Like Fandango, Movie Tickets lets you search for movies showing nearby, lists showtimes and has mini reviews. Both services add a service charge to the price of the ticket, Fandango's is $1.25, MovieTickets's service charge is a dollar for web purchases, I suspect it's the same for mobile ones but their doesn't seem to be anyway to verify that without purchasing a ticket.
Usability: mobile.movietickets.com/ (xhtml-mp)
Fandango Mobile (review) has some competition! Both sites work similarly, you first set up an account and give the service your credit card information (Fandango lets you do this right on the mobile site but MovieTickets makes you go to their website). One you want to buy a movie ticket using your phone it only takes a few clicks because your credit card is on file. Like Fandango, Movie Tickets lets you search for movies showing nearby, lists showtimes and has mini reviews. Both services add a service charge to the price of the ticket, Fandango's is $1.25, MovieTickets's service charge is a dollar for web purchases, I suspect it's the same for mobile ones but their doesn't seem to be anyway to verify that without purchasing a ticket.