Here's a newer way of categorizing Alan's movies, other than by date. If you notice any incomplete or innacurate lists, email me. Warning: minor spoilers are included below, so make sure to read the category title before reading on!
Alan as the villainy sort
Romeo And Juliet (1978)
Barchester Chronicles (1984)
Die Hard (1988)
Quigley Down Under (1990)
Closet Land (1991)
Robin Hood Prince Of Thieves (1991)
Rasputin (1996)
Help! I'm A Fish (2000)
Harry Potter 1 (2001)
Harry Potter 2 (2002)
Harry Potter 3 (2004)
Love Actually (2003) (Some would agree!)
Alan as the decent chap
Therese Raquin (1980)
January Man (1989)
Truly Madly Deeply (1991)
Close My Eyes (1991)
Bob Roberts (1992)
Mesmer (1994)
An Awfully Big Adventure (1995)
Sense And Sensibility (1995)
Michael Collins (1996)
Judas Kiss (1998)
Dark Harbor (1998)
Dogma (1999)
Galaxy Quest (1999)
Play (2000)
Blow Dry (2001)
Love Actually (2003)
Something The Lord Made (2004)
Alan doesn't die (Suggested by Rhiannon!Thanks!)
Harry Potter 4 (2005)
Harry Potter 3 (2004)
Love Actually (2003)
Harry Potter 2 (2002)
Search For John Gissing (2001)
Harry Potter (2001)
Blow Dry (2001)
Play (2000)
Galaxy Quest (1999)
Dogma (1999)
Dark Harbor (1998)
Judas Kiss (1998)
Michael Collins (1996)
Sense And Sensibility (1995)
Mesmer (1994)
Bob Roberts (1992)
Close My Eyes (1991)
Closet Land (1991)
January Man (1989)
The Barchester Chronicles (1982)
Alan dies
Something The Lord Made (2004) (Corrected by Laurie! Thanks!)
Help! I'm A Fish (2000)
Rasputin (1996)
An Awfully Big Adventure (1995)
Robin Hood Prince Of Thieves (1991)
Truly Madly Deeply (1991)
Quigley Down Under (1990)
Die Hard (1988)
Romeo And Juliet (1978)
Alan is the villainy sort and actually lives (Notice the smallness of this category...)
Barchester Chronicles (1984)
Closet Land (1991)
Harry Potter 1 (2001)
Harry Potter 2 (2002)
Harry Potter 3 (2004)
Love Actually (2003) (Some would argue...)
Alan in period costume
Romeo And Juliet (1989)
Therese Raquin (1980)
Barchester Chronicles (1984)
Spirit Of Man (1989)
Revolutionary Witness (1989)
Quigley Down Under (1990)
Robin Hood Prince Of Thieves (1991)
Mesmer (1994)
Sense And Sensibility (1995)
Rasputin (1996)
Michael Collins (1996)
Alan in dresses or dresslike robe things
Michael Collins (1996)
Harry Potter 1 (2001)
Harry Potter 2 (2002)
Harry Potter 3 (2004)
Alan appears for a grand total of 1 second
The Winter Guest (1997)
In support of Amnesty International
Closet Land (1991)
We Know Where You Live (2001)
Alan speaking in accents (not his native one)
Die Hard (1988)
Rasputin (1996)
Judas Kiss (1998)
Dark Harbor (1998)
Blow Dry (1999)
Something The Lord Made (2004)
Facial hair Alan
Die Hard (1988)
January Man (1989)
Quigley Down Under (1990)
Truly Madly Deeply (1991)
Robin Hood Prince Of Thieves (1991)
Rasputin (1996) ("What died on your face, Alan?")
Alan as historical person (specifically, a doctor with alternative theories)
Mesmer (1994) (Pioneer in animal magnetism, healed Maria Theresa)
Rasputin (1996) (Pioneer in hypnotism, healed the Prince)
Something The Lord Made (2004) (Pioneer in heart surgery, healed babies)
Michael Collins (1996) (Healed the Irish people. Okay, I'm stretching it...)
Films with Alan in a bed (Section written by S_k! Many thanks!)
Truly Madly Deeply (1991)
Close My Eyes (1992) (Not while I'm trying to watch the movie, thanks!)
An Awfully Big Adventure (1995)
Rasputin (1996)
Michael Collins (1996) (With two men!)
Dark Harbor (1999) (With, er, famous shorts.)
Love Actually (2003)
Harry Potter 3 (2004)
Films with Alan in women's clothing (Section written by Liz! Many thanks!)
Michael Collins (1996)
Harry Potter 3 (2004)
Alan and Mos Def: the perfect combo of English reserve and Urban cool!
Something The Lord Made (2004)
Hitchhiker's Guide To The Galaxy (2005)
Alan and Emma Thompson: joined at the hip
Sense And Sensibility (1995)
The Winter Guest (1997)
Judas Kiss (1998)
We Know Where You Live Live! (2001)
Love Actually (2003)
Harry Potter 3 (2004)
More will come later! Any category suggestions? Any mistakes? Please email me!