Emma was never ever ugly.
Sorcerer’s/Philosopher’s Stone era: Adorable
Chamber of Secrets era: Cute
Prisoner of Azkaban era: Hot
Goblet of Fire era: Sexy
Order of the Phoenix era: Gorgeous
Half-Blood Prince era: Supermegafoxyawesomehot
Deathly Hallows era: UNF UNF UNF UNF UNF
NOW!: HOLY MOTHER OF JESUS CHRIST. COMPLETE SEX BOMB
I say era because it was around the time the movies were being release/filmed/whatever.
(Source: strrzechowski, via katlxmn)