Courtesy of Box Office Mojo:
2 – Barnyard with $15,820,864, averaging $4,778 over 3,311 theaters (1st week)
7 – Monster House with $6,058,649, averaging $2,000 over 3,029 theaters ($57,010,414 total; 3rd week)
8 – The Ant Bully with $3,892,443, averaging $1,276 over 3,050 theaters ($18,152,994 total; 2nd week)
19 – Cars with $1,084,684, averaging $1,151 over 942 theaters ($237,517,306 total; 9th week)
22 – Over the Hedge with $430,761, averaging $1,133 over 380 theaters ($153,426,211 total; 12th week)
26 – A Scanner Darkly with $256,155, averaging $1,143 over 224 theaters ($4,669,454 total; 5th week)
34 – Garfield: A Tail of Two Kitties with $134,062, averaging $542 over 247 theaters ($27,810,083 total; 8th week)
43 – The Wild with $55,965, averaging $538 over 104 theaters ($37,310,059 total; 17th week)
46 – Ice Age: The Meltdown with $44,911, averaging $510 over 88 theaters ($195,167,863 total; 19th week)