During the first stakeout sequence at Hollywood Park, Lilli complains that they've been "at this" for five days. But later that night, Cal remarks that it's been three days.
The end titles are supposed to read as "Made in Hollywood, USA" but Hollywood is misspelled as "Hollwood."
When Bruner and Farnham celebrate the official conclusion of the case at home with the ladies, the coffee table seems to have a loose leg. However, Farnham very obviously kicks off the loose leg with his left foot so that it can fall off.
Lilli says she lives at 305 Sycamore Avenue, but fails to mention North or South, as there are both in the Hollywood area of Los Angeles where she says she lives.