An apparent slip-up on iTunes Store’s customer complaints facility seems to lend further credence to earlier reports Apple (NSDQ:AAPL) will unveil a movie rental service via the store this fall. Mac developer David Watanabe and Engadget both found references to a “RentalMovie” content type alongside “Movies” and “Ringtones” in the store’s problem reporting page; the facility lets customers inform Apple if they have not received the download, if the quality is insufficient etc. FT.com in June reported Apple was in discussion with studios including Walt Disney and Paramount to launch a movie rental offering this fall, with movies costing $2.99, expiring after 30 days and able to be transferred to devices like an iPod or iPhone. iTunes Store already offers movies for sale at $14.99 for new titles. It wouldn’t stretch the imagination too much to see Apple also bringing rentals to the lounge via Apple TV.