companion, and so "Father's Day" shows that she does make mistakes, but in a relatable way. Davies chose Paul Cornell to write the episode; Cornell had written Doctor Who spin-off material, especially in novels for the Virgin New Adventures, which bridged the gap between the classic series and the new. Davies originally intended that the episode be a small budget-saver character piece investigating the death of Rose's father, but Cornell suggested the addition of the Reapers and BBC Head of Drama Jane Tranter encouraged the additions of monsters to the new series. Working titles for the episode included "Wounded Time" and "Wound in Time". Davies and Cornell debated whether it should have been Rose's plan all along to save her father; this is left ambiguous in the episode. Billie Piper felt that it did not occur to Rose until after she began travelling. In the original script, in the scene where the Doctor opens the TARDIS doors and discovers only a police box interior, the police box fell apart. This was changed for reasons of cost, and Cornell has stated that he thinks the change is an improvement. Cornell also states that the character of Pete Tyler is based on his own father, who attempted many different jobs and schemes (including, like Pete, selling health drinks) before eventually finding success running a betting shop. Pete's line "I'm your dad, it's my job for it to be my fault" is taken from something Cornell's father once said to him. Originally Pete was to take a swig of wine before sacrificing himself, but this was removed because a correlation between alcohol and bravery was not thought to be a positive message. The entire episode was shot in Cardiff, in November 2004. The weather changed frequently during filming, and the cast began to fall ill; Eccleston had a cold. The production team selected several streets that looked similar. Most of the streets were in the community of Grangetown. The streets did not require much work for them to resemble 1980s streets; only a few satellite dishes were taken down. The church is St Paul's Church, also in Grangetown. The set of the Tylers' flat was redressed for the time period. For the 1980s style, members of the cast and crew brought in photographs of themselves from the 80s; for example, peach dresses and "big hair" were incorporated, but these elements were not meant