wherein i read this, Roger Ebert reviewing Marmaduke:
This is a congenial PG-rated animal comedy. If you like the comic strip, now in its 56th year, maybe you'll like it, maybe not. Marmaduke's personality isn't nearly as engaging as Garfield's. Then again, if personality is what you're in the market for, maybe you shouldn't be considering a lip-synched talking animal comedy in the first place.