IMDb did not give Debbie Reynolds credit in her Filmography for the movie Two Weeks With Love (1950).

Cricket: Actually, Debbie Reynolds is indeed listed in the cast of Two Weeks with Love (1950).

The reasons it isn't the first entry in her filmography are:

1. The Daughter of Rosie O'Grady and Three Little Words were released earlier in 1950 than Two Weeks with Love was; and
2. she also has an uncredited role listed in June Bride (1948).