diff --git a/oxdbarchive/cache.py b/oxdbarchive/cache.py
index ab326c0..48472af 100644
--- a/oxdbarchive/cache.py
+++ b/oxdbarchive/cache.py
@@ -61,6 +61,6 @@ def loadPosterStill(afile, position):
   still = afile.posterStillFile
   if not exists(still):
     afile.extractPosterStill(position)
-  if exsts(still):
+  if exists(still):
     return loadFile(still)
   return ''
diff --git a/oxdbarchive/model.py b/oxdbarchive/model.py
index 0242439..6146b9a 100644
--- a/oxdbarchive/model.py
+++ b/oxdbarchive/model.py
@@ -460,10 +460,11 @@ class ArchiveFile(SQLObject):
   
   def extractFrames(self, img_folder=cache.frame_cache_root):
     for p in self._startPoints():
-      self.extractFrame(p)
+      self.frame(p)
   
-  def extractPosterStill(self, position, img_folder=):
-    extract_poster_still(self.movieFile, self.posterStillFile, position)
+  def extractPosterStill(self, position):
+    oxdb_makedir(dirname(self.posterStillFile))
+    extract_poster_still(self.absolutePath, self.posterStillFile, position)
 
   def extractClipMovie(self, force = False): 
     if self.broken: