The following saints are memorialized on October 21 every year:
Agatho
Astericus
Berthold
Caius
Charles of Austria
Cilinia
Condedus
Dasius
Finian Munnu
Finton of Taghmon
Gebizo
Gundisalvus of Lagos
Hilarion of Gaza
Hugh of Ambronay
Imana of Loss
John of Bridlington
Laura of Saint Catherine of Siena
Malchus
Maurontus
Peter of Città di Castello
Tuda
Ursula
Viator
Wendelin
I can find no reference to a St. Colin. However, there was a Saint Collen whose feast day is May 21. He is not a patron saint.
Thomas was canonized on February 21, 1173, by Pope Alexander III.
October 21, 2000 fell on a Saturday.
Arrest and Trial - 2000 2000-10-21 was released on: USA: 21 October 2000
it will be on October 21, 2012. 9.30 am (Rome Time)
Under the Helmet - 1999 2000-10-21 was released on: USA: 21 October 2000
The feasts of the following saints are celebrated on September 21:Alexander of the Via ClaudiaFrançois JaccardGerulphHieuImbertIphigeniaIsaac of CyprusJohannes RiLandelin of EttenheimmunsterMark ScalabriniMatthew the ApostleMaura of TroyesMeletius of CyprusMichael of TsjernigovPamphilus of RomeTheodore of TsjernigovThomas Dien
Cheaters - 2000 2004-10-21 was released on: USA: 21 October 2004
Hollywood Off-Ramp - 2000 Lucky Star 1-21 was released on: Canada: 27 October 2000 USA: 27 October 2000
The Fearing Mind - 2000 was released on: USA: 21 October 2000
G String Divas - 2000 A Hot Summer Night 1-5 was released on: USA: 21 October 2000 USA: 21 October 2000
Soap Center - 2000 2002-10-21 was released on: USA: 21 October 2002