This is the only episode that Chuck Bass and Nate Archibald ride a public bus to school, unlike the usual private limo ride.
Chuck mentions his mother and then his 'parents' in the pilot when in fact his mother is not alive.
In the pilot Florencia Lozano plays Eleanor Waldorf. This is the only episode you see her in as Margaret Colin joined the series from the second episode and played Eleanor for the remainder of the show.
The Constance Billard School for Girls is based on The Nightingale-Bamford School on the Upper East Side of Manhattan. Cecily von Ziegesar, the author of the books which the series is based on, attended this prestigious school.
Of the original main cast, two of them are left handed: Penn Badgley (Dan Humphrey) and Ed Westwick (Chuck Bass).