Silent Hill grossed $99,982,632 worldwide.
Silent Hill grossed $46,982,632 in the domestic market.
Sugar Hill grossed $18,272,447 worldwide.
House on Haunted Hill grossed $65,090,541 worldwide.
Beneath Hill 60 grossed $3,440,939 worldwide.
Over the Hill to the Poorhouse grossed $3,000,000 worldwide.
Notting Hill grossed $116,089,678 in the domestic market.
#1 Silent Hill #2 Silent Hill 2 #3 Silent Hill 3 #4 Silent Hill 4: The Room (The Silent Hill Collection)* #5 Silent Hill Origins #6 Silent Hill Homecoming #7 Silent Hill Shattered Memories #8 Silent Hill 8 #9 (Silent Hill: Orphan)* #10 (Silent Hill: The Escape)* *You may not count theese as Silent Hill games because One is a collection of #2 #3 and #4 in the series, and Orphan and The Escape were released on mobile phones.
No, it has nothing to do with Silent Hill.
Sugar Hill grossed $18,272,447 in the domestic market.
Yes, I'd assume that if the others did well, they would have more money to do the other productions of more Silent Hill movies.
There are currently thirteen Silent Hill games. Seven in the main series, four spin-off titles, and two remakes.
Over the Hill to the Poorhouse grossed $3,000,000 in the domestic market.