This weekend’s box office won’t get much publicity — not with the Oscars happening on Sunday night. Based on Friday’s gross receipts, still on top after one week out is Marvel/Sony’s comic book caper Ghost Rider, which should speed to a very strong $18.5 million weekend in 3,620 theaters. (Can’t you smell the sequel, Nic Cage? Don’t blow it by over-negotiating.) Left in its exhaust was New Line’s poorly reviewed pulp thriller The Number 23, which probably will open to only a $14.5 weekend from 2,759 venues. Though its filmmakers kept trying to deny the bad buzz, they now can’t dispute that Jim Carrey’s appeal, especially as dramatic star, is played out. Fox’s movie version of its hit cable series Reno 911: Miami debuted in 3rd with a weekend estimate of $11 mil from 2,702 playdates. One week old Walden/Disney’s Bridge To Terabithia should get the usual kiddie bounce and probably end up #4 with weekend total of $13.5 mil in 3,500 theaters. DreamWorks’ Norbit with Supporting Actor Oscar nominee Eddie Murphy is still alive in 5th place entering its third week in theaters with an anticipated Fri-Sat-Sun weekend take of $10.5 mil from 3,145 venues. Warner’s chick flick Music and Lyrics, in 6th after opening Valentines Day with Hugh Grant and Drew Barrymore, could squeeze out another $8.8 mil at the weekend box office from 2,955 playdates. Universal’s well-reviewed spy thriller Breach, #7 after one week out, should make another $6.3 mil this Fri-Sat-Sun in only 1,493 theaters. Lionsgate’s Daddy’s Little Girl, another Tyler Perry comedy, is struggling in 8th place after 10 days out with only an anticipated $4.7 mil weekend from 2,111 venues. IDP’s Amazing Grace, playing in only 791 theaters, opened #9 and could be blessed with $4.2 mil for the weekend from. And, rounding out the Top 10, Warner’s The Astronaut Farmer, with Billy Bob Thornton, could be looking at only a $3.2 mil Fri-Sat-Sun from 2,155 playdates.